.icon-box{
    width: 100%;
    height: auto;
    overflow: hidden;
    background: #fff;
}
.icon-box .icon_lists{
    width: 100%;
    height: auto;
    overflow: hidden;
}
.icon-box .icon_lists li{
    display: block;
    width: 50px;
    height: 50px;
    overflow: hidden;
    text-align: center;
    border: 1px solid #ddd;
    float: left;
    box-sizing: border-box;
    cursor: pointer;
}
.icon_lists .icon{
    font-size: 20px;
    line-height: 50px;
    margin: 10px 0;
    color:#333;
    -webkit-transition: font-size 0.25s ease-out 0s;
    -moz-transition: font-size 0.25s ease-out 0s;
    transition: font-size 0.25s ease-out 0s;

}
.icon_lists li:hover .icon{
    font-size: 30px;
}